Spring-barrel brake for type-writing machines.



U. G. HAETING & J. F. FLOOD. SPRING BARREL BRAKE FOR TYPE WRITING MACHINES.

APPLICATIONFILED-111N227, 1910.

Q61. 83%, Patented Feb. 2?, 1912.

M V a jfiruezzibns cza wwayrzzlg @f /kliw-id K760226517 JZaoa) ell"- CLAYTON C. HARTING AND JAMES 1F. FLDOD, OF 'WOODSTOCK, ILLINOIS, ASSIGNOES T TEE OLIVER TYPEWRITER COMPANY, OF CHICAGO, ILLINOIS, A CDRPOMTIfilI rumors.

SPRING-BARREL BRAKE FOR TYPE-WRETING MACHINES.

ro snco.

Specification of Mtters'laten't.

Patented. Feb. 27, 1%12.

Application filed June 27; will). Serial No. 569,132.

. to the letters of rcferencer'ilarked thereon,

which form a part of this specification.

This invention relates to improvements in typewriters provided with tabulating or colunin-stop mechanism designed to efl'ect the release of the carriage from the control of the usual letter-spacing mechanism and to permit the carriage. to move under the action of its actuating spring, to a predetermined point or points, at which the movement of the carriage is arrested for the purpose of printing a series of items or numbers in one or morevertical columns. or lines upon the sheet.

The invention relates particularly to an improved form of brake adapted to be operated by the tabulating key to retard the speed of the spring-barrel which operates the carriage, and thus prevent excessive jar or shock to the carriage when the same is brought to rest against the stop.

The invention as herein shown is applied to a typewriting machine of the kind known as the Oliver but the features constituting the invention may be applied to machines of other kinds.

The invention as described herein is applied to the machine shown and described in United States Letters Patent Number 959,061, granted May 24th,- to .Theron L.

Knapp and C. C. Harting.

The invention consists of the matters hereinafter described and more particularly pointed out in the appendedclaims.

As shown in the drawings :Figure 1 is a top plan view of a typewriting machine prorided with my invention with the papercarriage and the type-bars removed, show ing the supporting standards for the typebars in section. Fig. 2 is a partial vertical section through Fig. 1 on the line 22 on an enlarged scale. Fig. 3 is a perspective View of the brake-shoe included in my in vention.

Referring now to the drawings, lie the machine frame; 2, the shift-frame; and 3, the spring-barrel, containing the carriage actuating spring, and from which motion is communicated to the carriage by a flexible connecting member 4. 5 is a tabulating key adapted to release the carriage from the letter-spacing device in any usual or con venient manner. 6 is a spring-retracted, reciprocating rod adaptedto be reciprocated rearwardly under the action of'the tabulat-- ing key to swing the brake upward into engagement with the under face of the barrel to retard its speed when the carriage is travcling free from the letter-spacing devices. The end of said rod engages a swinging frame 7 which is pivotall hung on the standard -8 and which carries the brake 9. These parts are all as described in Patent Number 959,061, above referred to, and require no further description.

The brake embraces a spring arm 9" rigidly secured to the swinging frame 7, and a brake-shoe 10 carried at the end of said spring arm.

Said shoe is in the form of 2?" saucer, having an annular flange 10 adapted to engage against the under face of the spring-barrel 3. Said saucer-shaped shoe is riveted centrally to the end of the spring arm 9, said riveted connection being loose so as to permit of a slight play between the parts. By reason of this loose connection, when the brake is operated, the shoe is raised so as to contact with the under surface of the barrel and the spring pressure of the member 5) under the action of the reciprocating operating rod 6, will icause the flange of said saucer to engage at all points with the under face of the barrel, thus giving a firm, cit-tended bearing of the brake; shoe against the barrel. No adjustmeutof thcshoe is necessary to cause it to make Full contact with the barrel, since it will immev diately swing into full engagement under the continued pressure of the spring arm 5), even though it may at first engage the barrel at but a single point. The bottom of the saucer which engages against the upper surface ofthe end of the spring arm 9 is ronnded so as to insure a free movement of the shoe with respect to said arm.

dad with a flange adapted 4:0 11% engagcnleni; wlih fhe unchn:

wrise IUAJVQZIIGHY n, kypizwl'ii' the combination with Mags, letterfipmsing ,1. I '-if1'ame papermamiage, a spring a filing {1m :mnwment 01? hand maunted on, the base frame tb'mugh chaniam mmiium which endwise 10.0w ent is given. t0 said papercmriage, letter-spacing mechanism fa-r controlfing the movement 0f am column-stop mechanism I said carriage from the letter-- mm embracing spacing mechanism and nrresfing its mmw Saucer si mi shae mam: at & (lesired point, inchldmg :1 key- 19 2 1161 spring 3mm, of braks mechimism actuated. by said keyle'mr, said bmke'mechanism embracing; spring a m. and a saucershafved snow 3002 615 'riveied at the 63nd of said spring arm and providad with an annular flange adapt bimtio with ed to be brought into engagemeno with the :1 apa e unis; imcac-f said barrel by the upward ted on the "ii-arms 3111 0115 11 plcsslju'e said spring asrm, said saucersaulimn 0E which sm iWia-e movemant shaped @1200 having a munded 13:139. "aid papeiwcarriage, leg? In t fimony, that We claim the foregoil'ig .m for c m lxufiing {he nuwement at as our inventmn We our signatures carriage, and Q01 nm-stup mach: 11" 1e presence 055 two Witnesses; this 17th day axing said can e no the 10' e1'- 033311110 A. D. 1910.

a 7 mg? lincchzzmsm mm arrestm 113s movw T 1 m v. k A?) Th nt p0 including a ke (DUAL-0U Humminat 129. 0;? 313313 spmng arm LRLLIAN Srrr-momomfl 

